Burner for utilizing molasses as a fuel



BURNER FOR UTILIZING MLASSES AS A FUEL Filed Oct. 13. 1920 2Sheets-Sheet 194176973@ P. G. HILDEBRNDT BURNER Foa UTILIZING MoLAssEsAs A FUEL Filed Oct. 13 1920 2 Sheets-Sheet 2 o o 0 0 O a citizen ofFrance, residin cation.

@eco il, 1923.

' iat/aria arena PAUL G. HLDEBRANDT, PHILADELPHIA, PENNSYLVANIA,ASSIG'NOR TO BLACK- STRP, FUEL AND POTSH PRODUCTS COMPANY, A CORPRTION0F DELAWARE.

' BUBNE. FOB UTILIZING MOLASSES AS A FUEL.

@riginal application filed June 26,` 1919, Serial No. 306,304. Dividedand. this application led @ctober 13,

'" 1920. serial No. 416,642.

To all wwmz may'concem:

Be it known that l, PAUL G, H'ILDEBRANDT,

at Philadelphia, in the county ci Philadelphia and tate of Pennsylvania,have invented certain nea7 and useful Improvements in yBurners for'Utilizing Molasses as a Fuel, of which the following is aspecification. v

rhe object of my invention is to provide a burner especially adapted toburn molasses as a uelaatter the molasses has been treated by a processfully described in several of my applications the burner herein shownbeing illustrated and described in my application iiled J une 26th,1919, .Serial No. 306,891, ci which this is a divisional' appli- Figureil is an end. elevation ot the dis charge nozzle of the pulverizer.

The burner is provided with an end head 1, which is provided withbrackets 2, 3. IThe bracket 2 has a head whichj supports a block fi,having aicentral channel. n the block Al rests a Casin f. This casinghas at one end a screw threa ed o ning for the reception of a screwthreade plug 6 carrying alter 7. The filter comprises a perforatedtubular member having a conical end which engages a conical seat 8 inthe casing. The other end of the casing has a somewhat contractedthreaded opening to receive the burner tube 9. p

The pipe 1() Ifroml a superheater, not shown, connects with the channelin the block t and hasl a valve controlled steam inlet pipe 11.

The bracket 3 has a threaded head to receive a screw 12 engaging thetilt/er casing 5.

The superheated molasses is carried to the filterl i', air being blOWD.111130 the pipe 10 at longitudinal view of. the' ters the burner tube-9.

Surrounding the burner tube 9 and concentric therewith are an innercylinder 13 and an outer cylinder 14, a spiral 15 being arranged betweenthe two cylinders. ln front of the end head 1 is a' header 16 into whichair under. pressure is admitted through the Valve 17. The header 16l hasbranches 18 communicating with the space Within the spiral.

The burner tube 9 terminates near the front end of the cylinder 13, andis threaded into an opening in the casing 19 of the pulverizer. Thelront end of the casing 19 is closedb a nozzle 2O back of which nozzleis a bloc 21 in which are formediour spiral grooves. The rear end of theblock 21 carries a s nare shank 22, Awhich extends' through tile neck ofa partition 23 secured Within the casing 19, whereby block 21is heldagainst rotation. The partition 23 has four peripheral recesses 25whichcommunicate with the space in the casing 19 at the end of theburner tube and also with the entrances to the several spiral grooves ofthe block 21. The four spiral grooves communicate, at their front endswith four chan nels 26 in the nozzle 20 which channels merge into acommon outlet 27. Four other discharge passages 28 communicate with therespective channels 26.

The molasses :trom the pulverizer impelled by air entering the flowingcurrent is sprayed into a suitable combustion chamber where it mixeswith the air discharged from the cylinder 111 and ignites and burns asv'freely as fuel oil.

The length of the burner is made necessary by the tact that, in thecombustion chamber of sugar refining furnaces, the point oi ignition ispreferably at a substantial dis tance from the opening of the combustionchamber. The envelope of air owing about the burner tube 14 protects themolasses from the direct heat of the furnace, besides fur-v nishing theair required to orrnthe most desirable combustible mixture.

TWhat l claim is:

1. In a burnerfor molasses fuel, the coniver cylinder! surrounding andconcentric with and extending throughout the length of the burner tube,a Spiral plate between and extending throughout the length of the twocylinders, said cylinders constituting an air chamber surrounding theburner and opening at the discharging end of the burner tube7 wherebythe molasses fuel flowing through said tube is protected by the air insaid chamber from the direct heat of the furnace, in which the burner ispositioned, and whereby air is discharged from such chamber and mixes atthe discharging end of the burner tube with molasses and .is

w burned therewith.

2. In; a burner for molasses fuel, the comhina-tion with a burner tubehaving an inlet and an outlet, an air chamber surrounding said tube andpermanently open to atmosphere at one end, a spirall` av fuel pulverizerand burner secured to said -tube and comprising a casing, a spirallygrooved block fixedly secured in said casing, a burner nozzle secured inone end of the casing, ports in said nozzle registering with the groovesin the block and merging into a common outlet7 and additional ports insaid nozzle leading from the first mentioned ports.

In testimony whereof I aflix my signature.

PAUL G. HILDEBRANDT.

